Oh, screw it, let's go back home

Aviation Notable Activity
1

http://flightaware.com/live/flight/DAL1484/history/20120611/0310Z/KATL/KSAV

2

Possibly weather delay or in air emergency is my guess.

3

Or a minor enough problem that let them go back to the maintenance base in Atlanta but had they landed the aircraft may have been grounded in Savannah.